Lock for window regulators



Oct 1929. D. MILLER ET AL 1,732,411

LOOK FOR WINDOW REGULATORS Filed Jan. 9, 1.928

awueu'tow Patented (lot. 22, 1929 lTE STATES r'rnr rte DUKE MILLER- AND BURTON S. FLORAIDAY, 0F TOLEDO, OHIO, ASSTGNOBS, BY IMESITE ASEIGNIVLENTE, T0 DURA COMPANY, OF TOLEDO, 01-116, .A. CORPORATION 01? OHIO LOCK FER W'INDGW REGULATORS Application filed January 9, 1928. Serial No. 245,501.

The invention relates to looks and refers more particularly to locks for window regulators. One of the objects of the invention is to provide a window regulator leek which holds the lifter element ot the window regu' later from swinging in either direction. Another object is to provide means for relea ing both of the coil sorings oi? the lock from locking engagement with. the stationary cup. A further object is to provide for driving the driven member of the lock independently of the release mechanism tor the lock. With these as well as other objects in view, the invention resides in the novel features of construction and combinations and arrangements of parts as more fully hereinafter set forth.

In the drawings 2- t Figure 1 is an inner side elevation, partly broken away, showinga window regulator having a clutch embodying the invention;

Figure 2 is an enlarged cross section on the line 2-2 of Figure 1;

Figures 3. 4: and 5 are cross sections respectively on the lines 3--3, t-4 and 5--5 of Figure 2; a

Figure 6 is a perspectiveview of the drive and driven release members slightly separated. from each other.

i The clutch is designed particularly for use in window regulators. The window regulator illustrated in the present instance has the mounting plate 1 which is adapted to be secured to and depend from the lock board and the lifter element 2 mounted upon the lower end portion of the mounting plate and coini nising the litter arm 3 fixedly secured to the gear seginent 4c. 5 is a crank which through the clutch drives the pinion 6 in mesh with the gear segment.

The clutch is constructed to positively hold the litter element from rotation in either direction or, in other words, to prevent back lash of the litter element. The clutch is also constructed so that the pinion is driven in dependently of the clutch. In detail, the clutch has the cup 7 which is provided with the cj' lindrical flange 8, the outer annular flange 9., the web 10 at the inner end otthe cylindrical flange having an axial opening and. the cylindrical flange 11 surrounding the opening. The annular flange 9 is located at the outer side oi the mounting plate 1 and is fixedly secured thereto as means of the rivets 12. 13 is a cupped plate at the outer side of the mounting plate and having the web 14 laterally spaced in advance of the annular flange J and the terminal flange 15 which abuts the annular flange 9 and is secured thereagainst by the rivets 12. The gear segment 4 extends between the lower portion oi the web 14 and the mounting plata 16 is the shaft to the inner end of which is fixedly secured the crank 5. This shaft is joru-nalcd in the cylindrical flange 11 and has the radial flange 17 within the cup 7 and abuttin its web 10, the cylindrical portion 18 outwardly beyond the flange 17 and adjacent thereto and the reduced serrated outer end portion 19. 1'30 is a pin fixedly secured to the web of the cupped plate 1.3 and extending axially into the shaft- 16 and terniinating opposite the cylindrical flange 11. This pin has journaled thereon the pinion 6 and the driven member 21 ot the clutch, these two being fixedly secured to each other by means 01 the bushing 22 ournalcd upon the pin and extending through the pinion an d the web 21 ot the driven member, the inner end of the bushing having the radial flange 23 abutting the inner side ot the web and the outer end of the bushing having the tin 2i abutting the outer side of the pinion. 25 is the driving; member of the clutch, this driving; member being cup-shaped and fixedly secured upon the serrated outer end portion 19 ot the shaft. This driving member has the transverse projections 26 which are engageable in the slots 27 formed in the web 21. These slots are concentric with the axis or. the driven member and are longer than the width of the projections 26 to provide a lost motion drivingz; connection between the driving and driven members of the clutch so that the latter may be released before the projections contact with the ends ot the slots. The driving member is preferably stamped or drawn from sheet metal.

The driven member 21 is also preferably drawn or stamped from sheet metal to cup shape, it having the flange 28 which extends Within the cup 7 and is spaced from the cylindrical flange 8 01" the latter a suficient distance to receive the pair of coil springs 29 and 30, which are normally expanded to l'rictionally grip the cylindrical flange 8. Each of these coil springs has an inturned end 31 Which extends into the transverse slot 32 formed in the flange 28, the slot having a width substantially equal to the diameter of the inturned ends so that the latter are fixedly secured to the driven member. The coil springs are wound in opposite directions about the flange 28 and have free inturned ends 33 extending toward each other and in approximately the same transverse plane of the clutch through the diametrically opposite transverse slots 28 in the flange 28 and on opposite sides of the slot 32. ith this arrangement it will be seen that the driven member of the clutch and consequently the lifter element of the window regulator is held from movement in either direction.

For releasing the coil springs from frictional engagement with the cup prior to driving engagement between the driving and driven members of the clutch, release mechanism actuated by the shaft 16 is provided. This release mechanism comprises the drive release member 34 and the driven releasemember 35, which are preferably stamped from sheet metal. The drive release member is fixedly secured upon the serrated outer end portion 19 of the shaft between the driving member 25 and the shoulder formed by the V cylindrical portion 18 of the shaft, the shaft having the fin 36 sheared up at its outer end and engaging the driving member 25. The drive release member has the pair of inwardly extending lugs 37 on opposite sides of'the axis of the shaft and arranged so that their lower edges are adapted to abut the transverse outwardly extending lugs 39 formed upon the driven release member. This driven release member has the peripheral arcu ate flange 40 which is in the plane of the free inturned ends 33 of the coil springs and the ends of which are engageable With these interned ends. This driven release member embraces the cylindrical portion 18 of the shaft and has the parallel out- Wardly extending lugs 41 forming an extended bearing upon the cylindrical portion 7 18. The arrangement is such that the driven release member while guided by the shaft may be bodily moved relative thereto and in operation upon turning the crank 5 in either direction it through the shaft16 turns the drive release member 34 which through one of its lugs 37 and the adjacent ing 39 upon the driven release member rotates this driven release member to bring an end of its arcuate flange 40 against the free inturned end 33 of acoil SPIlIlgltO thereby contract this coil spring and release the same from frictional engagement with the flange 8 of the cup 7 When this coil spring has been contracted and upon continued rotation of the crank the driven release member then fulcrums upon this inturned end of the coil spring and the driven release member is bodily moved to bring the other end of its arcuate flange into contact with the free inturned end of the coil spring to contract this spring. Then when both the coil springs have been released from frictional engagement with the cup the projections 26 upon the driving member 25 engage the ends of the slots 27 in the driven member 21 and rotate this driven member which through the pinion 6 rotates the litter element 2. However, as soon as driving force is no longer applied through the crank 5 both coil springs expand into frictional locking engagement with the cylil'idrical flange 8 of the cup 7 to lock the parts in their adj usted positions.

The slots 28 in the flange 28 of: the clutch driven member are preferably so positioned that it driving force were applied through the clutch driven member the edges of the slots would be alternatively engageable with the free inturned ends 33 of the coil springs, thereby tending to further expand the same to more firmly frictionally engage the clutch cup 7.

For holding the coil springs from axial movement relative to the cup 7, the inner convolution of the inner coil. spring 30 abuts the web 10 of the cup, while the outer convolution of the outer coil spring 29 abuts the lugs 42 struck out from the flange 28 of the driven member 21 and extending substantially in the plane of the web of this driven member.

What we claim as our invention is:

1. In a lock, a stationary cup, a pair of coil springs within said cup adapted to be expanded thereagainst, a driven member, and means for releasing both of said coil springs from said cup and subsequently actuating said driven member.

2. In a lock, a stationary cup, a driven member, a pair of coil springs within said cup adapted to be expanded thereagainst. each coil spring having an end rigidly secured to said driven member. and means for releasing both of said coil springs from said cup and subsequently actuating said driven member.

3. In a lock a stationary cup, a driven member, a plurality of coil springs within said cup normally expanded thereagainst, each coil spring having an end rigidly secured to said driven member for normally locking the same against rotation in either direction and means for contracting one of said coil springs to release the same from said cup and subsequently rotating said driven member.

4. In a lock, a stationary cup, a pair of coil springs within said cup adapted to be expanded theneagainst a driven member connected to said coil springs, a shaft, and means actuated by said shaft for releasing both of said coil sprin s from said cup and subsequently actuating said driven member.

5. In a lock, a stationary cup, a pair of coil springs within said cup adapted to be expanded theroagainst, a driven member connected to said coil springs, a shaft, mechanism a ,tuated by said shaft for releasing both of id coil springs from said cup and a driving member actuated by said shaft to drive said driven member subsequent to the release said coil springs.

a lock, a stationary cup, :1 pair of coil springs within said cup adapted to be er;- panded thereagainst, a driven member connected to said coil springs, a shaft, mechanism actuated by said shaft for releasin both of said coil springs from said cup, and means actuated by said shaft independently of said mechanism but subsequent to the operation thereof for driving said driven member.

7. In a look, a stationary cup, a pair of coil springs within said cup adapted to be es:-

, panded thereagainst, a driven member rigid ly connected to an end of each of said coil springs, a driving member hav 5 a lost motion connection with said d1 ven member, a shaft carrying said driving member, and mechanism actuated by said shaft for releasing both of said coil springs from said cup p 'ior to actuation of said driven. member by aid driving member.

8. In a lock, a stationary cup, a driven member, a pair of coil springs within said cup adapted to be expanded thereagainst, said coil springs having inturned ends with one inturned end of each rigidly connected to said driven member, a shatt, and means actuated by said shaft and engageable with said inturned ends and driven member for respectively releasing both of said coil springs from said cup and driving said driven member.

9. In a lock, a stationary cup, a cupped driven member extending within said cup, a pair of coil springs between said cup and driven member and adapted to be expanded against said cup, said. coil springs each hav ing an inturned end secured to said driven member and a free inturned end engageable by said driven member, a shaft, a drive release member fixed upon said shaft, a driven release member actuated by said drive release member to engage said free inturned ends of the coil springs to contract the latter and thereby release the same from said cup, and a driving member lined upon said shaft and engageable with said driven member to rotate the same subsequent to the release of said coil springs from said cup.

10. In a look, a stationary cup, a driven member, a pair of coil springs within said cup adapted to be expanded thereagainst, each of said coil springs having an end fixedly securedto said driven member, and said coil springs extending in opposite directions from their ends secured to said driven member, and means for releasing the coil springs from said cup and subsequently driving said driven member.

11. In a lock, stationary cup, a cupped driven member having a slot in its web, a pair of coil springs surrounding said driven memher and located within said cup and adapted to be expanded against the latter, a shaft,

moans actuated by said shaft for releasing both of said coil springs from said cup, and a driving member fixed upon said shaft and having a projection engaging in the slot of said driven member for actuating the latter after said coil springs have been released from said cup.

12. In a look, a stationary cup, a cupped driven member having a flange concentrically located within 5 id cup and formed with diametrically opposite slots and an inter mediate slot, a pair of coil springs between said cup and flange and adapted to be expanded against the former, each of said coil springs having an inturned end engaging in the intermediate slot of said flange and a free inturned end engaging in one of the diametrically opposite slots of said flange, a shaft extending concentrically within said cup, a drive release member fixed upon said shaft and having transverse lugs, a driven release member guided upon said shaft and movable relative thereto and having transverse lugs engageable with the lugs of said drive release member, said driven release member having shoulders for engaging the free inturned ends of said coil springs for releasing the latter from said cup, and adriving member fixed upon said shaft and having a lost motion connection with said driven member for actuating the latter after said coil springs have been released from said cup.

13. In a lock, a stationary member, a rotary driven member, means for locking said driven member from rotation in either direction including locking members engageable with said stationary member, and means for releasing both of said locking members from y,

said stationary member and subsequently actuating said driven member.

14. In a look, a stationary member, a rotary driven member, means for lockin said driven member from rotation in either direction including locking members engageable with said stationary member, a rotary driving member having a lost motion connection with said driven member, a shaft for rotating said driving member and mechanism actuated by said shaft for releasing both of said locking members from said stationary member prior to actuation of said driven member by said driving member.

15. In a look, a stationary member, a rotary driven member, means for locking said driven member from rotation in either direction including locking members engageable with said stationary member, a shaft, mechanism actuated by said shaft for releasing both of said locking members from said stationary member, and means actuated by said shaft independently of said mechanism but subsequent to the operation thereof for rotating said driven member.

In testimony whereof We afliX our signatures.

DORR MILLER. BURTON S.. FLOR'ADAY. 

